Metallic sealing-cap.



N0.s91, s5s. PATENTED JUNE 23, 1908.

. R. B. MEYER."

METALLIC SEALING GAP.

APPLICATION FILED JULY 10, mos; RENEWED oqw. a. 1907.

22171172717717Piiikiili)iiiiiiiiPiiii;3277;];2722

RICHARD E. MEYER, OF DETROIT, MICHIGAN.

METALLIC SEALING-CAP.

Specification of Letters Patents Patented June 2 3, '1908.

Application filed July 16, 1906, Serial No. 326,487. Renewed October 9,1907. Serial No. 396,638.

To all whom it may concern:

Be it known that I, Riemann E. MEYER, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of ltlichigan, have invented certain new and useful llllPl'OVtlllt'lliS in M ct allic Sealing- Caps. of which the following is a spccificat ion, reference being had therein to the accompanying drawings.

My invention relates to the art of hermetically scaling jars; bottles and the like with metallic caps and it has particular reference tora cap made from sheet. metal and used in connection with asealing disk or gasket and the invention consists in the novcl means with which the cap is provided for clamping it to the mouth of the-jar or bottle, all asmore fully hereinafter described and shown in the accompanying drawings, in which Figure l, is a perspective view of my improved metallic scaling cap; Fig. 2, isa vertical cross section thereof; Fig. 3, is a similar section showing it as applied to a jar; Fig. 4, is a side. elevation of the cap with the fingers wholly unrollcd; Fig. 5, is a vertical central section'thrtnigh a metallic cap of my in vc ntion showing the operation of scaling therewith,

' present use only in the means for clamping it o the shoulder oil a jar. and this in the present inventionconsists of a plurality of clam ing fingers l) which are rol ed portions on the edge. of the depending flange'of the cap and are formed from suitable extensions of said flange, coiled or rolled up against the outer face of the flange and preferably conforming tothe shape thereof. These fingers will be. preferablyformed at the lower edge. of a continuous portion of the depending flange as shown in Fig. 4, but it will be understood that there is considerable latitude, as there is also in the number of the fingers, their size relative to the. cap and in the shape of the ex struction present several advantages, in the first instance tured as any the clamping tion, another which the ca All that will )0 needed is to seat the cap firmly upon the jar and when it is thus seated to force the clampingfingers into engagement with the jar, as for instance by the use of a pressure. head as E in Fig. 5, which in its upper portion tits the cap but gradually enlarges towards the lower end. In pressing they are as cheaply manufacother cap, since the rolling of fingers is a very simple operaadvantage is the-facility with this head downwardly over the cap the clamping fingers will be pressed'inwardly and downwardly. This pressure forces them down bodily 'till they reach the locking shoulder of the jar and thence they will be pressed inward beneath it.- and lock thereon. 11 thus forcing them down, each clamping finger will partially unroll, but the remaining portion which is forced under the shoulder varied and theymay be rolled more or less tightly, the shape of, the fingers may be also varied, although I prefer to make them broader at the base than at the tip, referring to Fig. 4, of the drawing which shows the fingers in their original form before rolling.

In Fig.6 the depending flange of the cap is scalloped with the rolled u I I it will be observed that with my construction of cap it makes no difference if the lock-1 ing shouldcr'is not perfectly true all around, in fact it could be quite irregular since each linger finds its own seat, nor is it necessary tips of. the scallops may be applied in sealing.

The number of clamping fingers may be to form the locking shoulder'by a distinct offset on the jar since a mere shallow groove around the jar would accomplish the object. A further advantage of my cap is that the seating is essentially accomplished by downward ressure without'subjeeting the jar to great ateral pressure which is liable to crack the jar.

Havin thus fully described my invention, what I cairn is:

l. A sheet metal sea-ling cap having a depending flange provided on its lower edge with a plurality of outwardly projecting docking ingers composed of extensions of said flange cireumferentially rolled up on the outerface thereof and adapted to be engaged with a suitable lot'lilllg' shoulder on a iar without materially unrolling the locking lingets by applying downward and inward pressure to said lingers in the sealing of the jar.

2. A sheet metal sealing cap having a depending llange provided on its lower edge l of said flange cireumferentially rollediup against the outer face thereof, said extensions being largest at the base and of suflisealing.

with a plurality of outwardly projecting;

locking lingers composed of spaced extensions ol saidflange clrcuinlerentially rolled up against the outer face thereof, the extensions being broadest at the base and tightly rolled up, said locking lingers being arrainred relation to a: shou der on a jar, where y, in sealing, the locking lingers maybe engaged'therewith without materially unrolling the same by applying downward and inward pressure thereto.

3. A sheet metal sealing cap having a con tinuous depending flange provided with a plurality of spaced extensions at its lower edge tapering from the base to the tip, and circumferentially rolled up against the outer face of the continuous portion, said rolled e to engage with a suitable shoulder on a jar by applying downward and inward pressure thereto in sealing the jar.

4. A sheet metal sealing cap having a continuous depending llange with spared extensions thereon which are widest at the base and are circumferentially rolled up against the outer face of the flange, said rolled up extensions forming lot-hing lingers adapted to engage with at suitable locliim shoulder on.a jar by downward and inwar displacement ip sealiw the jar.

5. A sheet metal sea ing cap having a continuo us depending llange wit 1 a plurality of outwardly projecting locking fingers at the lower edge thereof rornied lrt nn extensions 7. A sheet metal spaling cap provided with a plurality of independent looking lingers each being roiled outwardly and upwardly for the purpose set forth.

8. A sheet metal sealing cap provided with a plurality of tapering locking lingers each, belp'g eoiled outwardly and upwardly for the purpose set forth.

9'. A sheet metal sealing rap provided with a plurality of independent locking lingers each being coiled outwardly and up.- wardly, said locking lingers being of a length to allow a portion thereof to remain coiled when engaged on a at or bottle.

10. A metallic sealing cap provided with a )lurality of independent locking lingers each being coiled outwardly and upwardly, said locking lingers adapted to be engaged with a 11 J extensions lornnng locking lingers adaptlocking shoulder on a jar or bottle by applying downward and inward pressure.

11. A metallic sealing cap provided with a pluralitr of independent locking lingers each being coded outwardly and upwardly, said locking lingers adapted to be engaged with a locking shoulder on a jar or bottle by applying downward and inward pressure, the locking lingers being of a length to allow a )ortion thereof to remain coiled.

ln testimony whereof I allix my signature in presence of two witnesses. I v

RlCHAltD E. MEYER.

Witnesses 0'r'r0 F. BARTHEL, (JnAs. B. SHUMWAY. 

